Epson 4SLC2-50 - Manual (Page 73)

After you reassemble your computer, you need to run the Setup
program to make sure it recognizes the new memory amount. As
soon as you turn on the computer, it will prompt you to run Setup
because of the memory mismatch. See Chapter 5 for instructions.
If you later remove a memory module, be sure to run the Setup
program again.
Installing a Numeric Coprocessor
Your computer has a socket for a numeric (math) coprocessor,
which can be used for the Cyrix 83S87-25 coprocessor. Installing a
numeric coprocessor speeds up your computer’s numeric
calculations and graphic displays when you are using certain
application software. Contact the Epson Connection or your sales
representative for additional information on choosing a numeric
coprocessor compatible with the Cyrix 486SLC2-50 CPU.
The coprocessor chip can be easily damaged and is expensive to
replace; so if you don’t feel confident about installing it yourself,
ask your Authorized Epson Servicer for assistance.
To install the coprocessor, follow these steps:
1. Remove the keyboard as described on page 4-11.
Caution
Make sure you ground yourself before you touch the
coprocessor chip. Then remain as stationary as possible
while you install it. Do not touch the pins on the chip;
handle the coprocessor only by the edges of its case.
4-16 Connecting Optional Devices